Heat preservation box and split-type wooden box with heat preservation box

ABSTRACT

The present application discloses a heat preservation box and a split-type wooden box with a heat preservation box that includes a heat preservation box and a wooden box. The heat preservation box is placed in the wooden box and they are flexibly connected to each other. The heat preservation box may be taken out of the wooden box for separate use. There is no connection between the wooden box cover and a body of the wooden box; a drain plug on a side surface of the heat preservation box is used in cooperation with a side cover plate of the wooden box, so that waste water in the heat preservation box can be prevented from entering the wooden box; the box body of the heat preservation box is locked with the upper cover of the heat preservation box, and the operation is simple.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims priority to Chinese Patent Application No. 201720446297.3, filed on Apr. 26, 2017, which is hereby incorporated by reference in its entirety.

TECHNICAL FIELD

The present application relates to the field of heat preservation boxes, and in particular, to a heat preservation box and a split-type wooden box with a heat preservation box.

BACKGROUND ART

Heat preservation boxes are boxes with heat perseveration functions in use. Common materials of the heat preservation boxes include plastics, foams, metal materials, woods, and the like.

SUMMARY OF THE INVENTION

One of the objectives of the present application is to provide a heat preservation box and a split-type wooden box with the heat preservation box, to solve the problem that the heat preservation box cannot be locked and sealed with an upper cover thereof.

The present application discloses a heat preservation box, including a box body and an upper cover;

-   -   the box body includes an inner cavity and an outer wall;     -   the upper cover is connected to the box body by using a hinge         shaft, and they are locked with each other by using a hasp;     -   the hasp includes a connection end, a fastener, and a handle;     -   a tail end of the connection end is provided with a connection         through hole; the fastener is in a shape of a         semi-flat-spherical; a connection surface between the fastener         and the connection end is an arc surface; a planar end of the         fastener is connected to the handle, and the planar end is         opposite to the arc surface; the structure of the hasp is easy         for installation, the hasp is fixed only by using the connection         through hole; the fastener is used to fix the box body and the         upper cover, and the handle facilitates manual operation.     -   the box body includes an inner cavity and an outer wall; a heat         preservation layer is disposed between the inner cavity and the         outer wall; the heat preservation layer is used for heat         preservation, and different types of materials can be selected         according to specific using conditions.

Further, a round through hole is installed on an upper end of a side surface on the outer wall of the box body;

-   -   a round through hole is provided on a side surface of the upper         cover;     -   one end of the hinge shaft is installed in the installation         round through hole of the box body, and the other end is         installed in the installation round through hole of the upper         cover. The hinge shaft herein is a rotation shaft for opening         and closing the upper cover. The structural form is easy for         operation, and is not easily damaged.

Optionally, the fastener of the hasp is in a shape of a hemisphere, and in this case, a notch for fixing the fastener on the box body accordingly changes into a shape of a hemisphere.

Further, a side, opposite to a side provided with the hinge shaft, on the upper cover is provided with a groove, and round holes are disposed on two sides of the groove;

-   -   the box body is provided with a semi-arc-shaped notch for fixing         the fastener. Herein, other forms such as a notch or a trench         capable of fixing the fastener can be disposed on the box body.

Further, a hasp shaft penetrating through the connection through hole of the connection end is installed between the round holes on the two sides of the groove of the upper cover; the hasp is installed on the upper cover;

-   -   the material of the hasp is elastic material, and when the hasp         is stretched, the fastener is clamped at the semi-arc-shaped         notch of the box body. In this way, the box body is integrally         connected to the upper cover by using the hasp, and the box body         is locked with the upper cover by means of elasticity of the         hasp.

Further, a through hole for water drainage is disposed at a bottom of a side surface of the outer wall of the box body; and a drain plug is installed in the through hole.

The drain plug is connected to the through hole for water drainage of the box body by using a sealing gasket, and they are in a threaded connection to each other. Threaded connection and the sealing gasket can both be used for ensuring the sealing effect of the drain plug.

Optionally, the material of the drain plug is plastic, such as ABS plastic. The drain plug includes a knob and a thread plug, and the thread plug is provided with a thread, and is screwed into the through hole with a thread. The knob is S-shaped or linear, and a side surface of the knob is provided with a round hole. The function of the knob is to facilitate twisting the thread plug.

Optionally, the material of the drain plug is a soft rubber material. The drain plug includes a knob and a thread plug. The thread plug is installed in the through hole for water drainage, and the knob is in a shape of a semi-circular ring. The drain plug in this form can be conveniently pulled out of the through hole, and only needs to be directly inserted into the through hole for water drainage in use. The knob can be used to pull the drain plug out of the through hole for water drainage.

Optionally, a sealing ring is disposed between the box body and the upper cover. The function of the sealing ring is to ensure better sealing, so that there is no gap between the box body and the upper cover.

Optionally, the material of the box body is plastic.

Further, the inner cavity of the box body is a rectangular cavity. A groove for installing a partition plate is disposed in the middle of the cavity. The partition plate is installed in the groove and divides the cavity into a left chamber and a right chamber. In this way, food that cannot be mixed can be placed in a separated manner.

Optionally, the partition plate is a rectangular plate, and there is an oblong hollow on an upper edge. The shape of the partition plate matches the inner cavity of the box body to ensure the division function thereof, and also facilitate detachment from the box body.

Optionally, a shelf is placed in the left chamber, and an upper part of the shelf is disposed on an inner wall of the left chamber. The shelf can be used to place objects of different types, and the space of the box body can be sufficiently used.

Optionally, the shelf is a frame structure formed by welding stainless steel.

Optionally, the shelf is a plastic frame.

Further, a side surface of the box body is provided with a wedge-shaped protrusion, and a pulling rope is installed on the wedge-shaped protrusion.

The pulling rope is in a U-shaped structure, and a handle is disposed on a middle section of the U shaped pulling rope.

A installation hole is disposed on a side surface of the wedge-shaped protrusion of the box body;

-   -   two ends of the pulling rope are fixed on a pulling rope shaft;     -   the pulling rope shaft is installed in the installation hole of         the wedge-shaped protrusion. The function of the pulling rope is         to move the heat preservation box by pulling it by using a hand         when using the heat preservation box, and the pulling rope does         not occupy an additional space.

Optionally, feet are installed on four corners of a bottom surface of the box body, so that the box body does not directly contact the ground when placed on the ground.

Optionally, rollers are installed on the bottom surface of the box body. When the heat preservation box is used alone, the heat preservation box can be pulled by using the rollers, to save labor.

In addition, the present application further provides a split-type wooden box with a heat preservation box, to solve problems that water drainage of the heat preservation box is difficult, and the heat preservation box cannot be detached from the wooden box. The split-type wooden box includes a wooden box body and a heat preservation box;

-   -   the heat preservation box is installed in the wooden box and         they are flexibly connected to each other. The heat preservation         box can be detached from the wooden box for use alone.

Further, the wooden box includes a body and a wooden box cover; the wooden box cover and the body are in a split form, and there is no connection between the wooden box cover and the body.

Further, the inner size of the body matches the size of the heat preservation box, so that the heat preservation box is placed in the body.

Further, two corners of the wooden box cover and the upper cover of the heat preservation box are both provided with bolt holes; a nut is fixed in the bolt hole of the wooden box cover, and the wooden box cover is fixedly connected to the upper cover of the heat preservation box by using a bolt. The wooden box cover is connected to the upper cover, and they can be simultaneously opened, and the weight of the wooden box cover facilitates better sealing of the heat preservation box.

Further, a side surface, corresponding to the side surface provided with the drain plug of the heat preservation box, on the body is provided with a side cover plate, which can be opened downwards or upwards, for discharging waste water in the heat preservation box.

The side cover plate is L-shaped, and one end thereof is connected to the body by using a pin shaft, and the other end is connected to the body by using a latch.

Optionally, the latch includes a fixed part and a flexible part; the flexible part is installed on the side cover plate and includes an oblong ring and a wrench; the fixed part is fixedly installed on the body, and is provided with an installation groove for installing a circular ring. The latch connection can be repeatedly opened, and occupies a small volume, and does not affect normal use of the heat preservation box.

The through hole for water drainage of the heat preservation box is located in the L-shaped space of the side cover plate, and the waste water does not contact the body during water drainage only when the through hole is located in the space.

Optionally, the body is a rectangular wooden box body with legs.

The number of legs is 4, and the legs are all made of woods; the legs are connected to each other by using supporting crossbars to form a main frame of the body; the wooden box body is located in the frame, and is fixedly connected to the legs by using bolts.

Optionally, pulleys are fixed below the legs. In a moving process, the wooden box body can be pushed to advance, so as to save labor for carriage.

Optionally, the legs and the rectangular wooden box body are in an integral form, and can also satisfy a use requirement.

Optionally, there is a space for accommodating the hasp on a side surface inside the body. When the heat preservation box is installed in the body, the hasp is placed in the space, and does not occupy an additional volume, so that the overall volume of the body can be reduced.

Optionally, the body is provided with a bottle opener to facilitate use.

The bottle opener is fixed on an upper right corner on the side surface of the body by using a self-tapping screw, can be directly used, and is fixed on the body, and is not easily lost.

Optionally, the wooden box cover is provided with an opening handle.

The present application provides a heat preservation box and a split-type wooden box with a heat preservation box. Beneficial effects of the present application are as follows:

(1) the box body and the upper cover of the heat preservation box are connected to each other by using a hinge shaft; the fastener can lock the box body to the upper cover, to ensure sealing between the box body and the upper cover;

(2) the heat preservation box is directly placed in the wooden box, and can be easily taken out, and can be used alone;

(3) there is no connection between the body of the wooden box and the wooden box cover, so that the wooden box cover and the body are in a split structure, thereby facilitating placing the heat preservation box in and taking the heat preservation box out;

(4) the wooden box cover is fixed to the upper cover of the heat preservation box by using a bolt, and they are detachable; the wooden box cover implements opening and closing with the upper cover of the heat preservation box by using the hinge shaft of the heat preservation box; and

(5) the drain plug on the side surface of the heat preservation box is used in cooperation with the side cover plate of the wooden box, so that waste water in the heat preservation box can be prevented from entering the wooden box.

Other features and advantages of the present application will be described in the subsequent specification, and some of them become obvious from the specification or are learned by implementing the present application. The objectives and other advantages of the present application can be implemented and achieved through the structure specifically pointed out in the written specification, the claims, and the accompanying drawings.

BRIEF DESCRIPTION OF DRAWINGS

The accompanying drawings are only used for the objective of showing specific embodiments, and are not considered as a limitation to the present application. In the entire accompanying drawings, same reference signs indicate same components.

FIG. 1 is an overall schematic structural diagram of a split-type wooden heat preservation box according to the present application;

FIG. 2 is an overall schematic structural diagram of a heat preservation box of a split-type wooden heat preservation box according to the present application;

FIG. 3 is a schematic structural diagram of a drain plug of a split-type wooden heat preservation box according to the present application;

FIG. 4 is a schematic structural diagram of a hasp of a split-type wooden heat preservation box according to the present application;

FIG. 5 is a schematic diagram of a wooden box of a split-type wooden heat preservation box according to the present application;

FIG. 6 is a schematic diagram of a body of the wooden box of a split-type wooden heat preservation box according to the present application;

FIG. 7 is a partial enlarged view of a groove for a hasp of a split-type wooden heat preservation box according to the present application;

FIG. 8 is a schematic structural diagram of a side cover plate of a split-type wooden heat preservation box according to the present application;

FIG. 9 is a partial enlarged view showing that a heat preservation box is placed in a body according to the present application;

FIG. 10 is a top view of an upper cover of a heat preservation box according to the present application;

FIG. 11 is a bottom view of a wooden box cover according to the present application; and

FIG. 12 is a partial enlarged cross-sectional view after a cover of a heat preservation box is installed with a wooden box cover according to the present application.

Reference signs in the figures: 1—heat preservation box, 2—wooden box;

11—box body, 12—upper cover, 13—hinge shaft, 14—sealing ring;

111—partition plate, 112—shelf, 113—drain plug, 114—pulling rope shaft, 115—pulling rope, 116—foot;

121—hasp, 122—hasp shaft, 123—bolt hole;

1211—connection end, 1212—fastener, 1213—handle;

21—body, 22—wooden box cover;

211—leg, 212—pulley, 213—side cover plate, 214—latch, 215—bottle opener;

2131—first edge, 2132—second edge, 2133—third edge;

221—opening handle;

M—distance between the side surface of the side cover plate and the side surface of the box body.

DETAILED DESCRIPTION OF THE INVENTION

Preferred embodiments of the present application are specifically described below with reference to the accompanying drawings. The accompanying drawings constitute a part of this application, and are used together with embodiments of the present application to illustrate the principle of the present application.

With respect to wooden heat preservation boxes on the current market, a wooden box and a heat preservation box are designed to be integral, and cannot be separately used. Discharging of ice water molten in the heat preservation box from a side outlet of the heat preservation box can only be completed by means of auxiliary guide-out; the operation is relatively troublesome, and in the actual use process, the decorative function is greater than the use function, and practicality is not strong. In addition, most heat preservation boxes are relatively difficult to move, and almost all of them are carried by human labor, resulting in considerable inconvenience to users.

The present application discloses a heat preservation box and a split-type wooden box with a heat preservation box, as shown in FIG. 1, including a heat preservation box 1 and a wooden box 2. The heat preservation box 1 is installed in the wooden box 2, and they are flexibly connected to each other, and are detachable.

As shown in FIG. 2, the heat preservation box 1 is in a shape of a cuboid, and includes a box body 11 and an upper cover 12.

-   -   the material of the box body 11 is plastic, and the box body 11         includes an inner cavity and an outer wall; there is a heat         preservation layer between the inner cavity and the outer wall.         The inner cavity is a cuboidal cavity; a groove for installing a         partition plate 111 is disposed in the middle of the cavity; the         partition plate 111 is installed in the groove and divides the         cavity into a left chamber and a right chamber; the advantage of         separating the left chamber from the right chamber is to avoid         mixing different food or drink that cannot be placed together.         The partition plate is a rectangular plate, and there is an         oblong hollow on an upper edge of the partition plate to         facilitate detachment from the box body. A shelf is placed in         the left chamber. The shelf is a frame structure formed by         welding stainless steel. The shelf can be used to place objects.         An upper part of the shelf is disposed on an inner wall of the         left chamber and can be pulled out from the left chamber.

A through hole for water drainage is disposed at a bottom of a side surface of the outer wall of the box body 11. Waste water in the box body 11 can be discharged from the through hole. When the heat preservation box 1 is used, a drain plug 113 is installed in the through hole by using a sealing gasket, to ensure the sealing effect of the heat preservation box 1 in normal use.

In this embodiment, the drain plug 113 is connected to the through hole by a thread, as shown in FIG. 3. The material of the drain plug 113 is ABS plastic, and the drain plug 113 includes a knob and a thread plug. The thread plug is screwed into a through hole with a thread, and the knob is rotated to take the tread plug out of the through hole. The knob may be S-shaped, as shown in the figure, or may be linear in an inclined manner; a round hole is disposed on a side surface of the knob.

In another embodiment, the material of the drain plug 113 is a soft rubber material, and the drain plug 113 includes a knob and a thread plug. The thread plug can be directly inserted into the through hole for water drainage, and performs a sealing function by using a thread thereon. The thread plug is directly pulled out for water drainage. The knob may be set to be in a shape of a semi-circular ring, to facilitate pulling the drain plug 113 out by fingers.

Optionally, there are wedge-shaped protrusions on the side surface with the through hole for water drainage and a side surface opposite thereto. Installation holes are disposed on side surfaces of the protrusions. A pulling rope 115 is installed in the installation hole by using a pulling rope shaft 114.

In this embodiment, the pulling rope 115 is in a U-shaped structure; a handle is disposed on the middle section of the U shaped pulling rope 115. Two ends of the U-shaped pulling rope 115 are fixed on the pulling rope shaft 114. When the heat preservation box 1 is used alone, the handle may be lifted by a hand, and carriage is implemented by lifting the heat preservation box 1 by a hand by using the pulling rope 115.

Optionally, feet 116 are installed on four corners of a bottom surface of the box body 11, to perform a supporting function.

Optionally, rollers are installed on the bottom surface of the box body 11.

The box body 11 is connected to the upper cover 12 by using a hinge shaft 13. In this embodiment, round through holes are left-right symmetrically provided on an upper end of a side surface, on which the pulling rope 115 is not installed, on the outer wall of the box body 11, and accordingly, two installation round through holes are also provided on a corresponding side surface of the upper cover 12; one end of the hinge shaft 13 is installed in the left installation round through hole of the box body 11, and the other end is installed in the left installation round through hole of the upper cover 12; one end of the other hinge shaft 13 is installed in the right installation round through hole of the box body 11, and the other end is installed in the right installation round through hole of the upper cover 12; the box body 11 is connected to the upper cover 12 by using two hinge axes 13. When the upper cover 12 needs to be opened, an opposite side, on which the hinge shaft 13 is not installed, on the upper cover 12 is manually wrenched, and the upper cover 12 can rotate around the hinge shaft 13 to be opened.

In another embodiment, an installation round through hole is disposed on the middle part of an upper end of the upper cover 12, and only one hinge shaft needs to penetrate through the installation round through hole; two ends are respectively installed in the installation round through holes of the box body 11 to connect the box body 11 and the upper cover 12.

A side surface, opposite to a side surface provided with the hinge shaft 13, on the upper cover 12 is provided with a groove, and round holes are disposed on two sides of the groove; a hasp shaft 122 is installed between the two round holes; the hasp 121 is installed on the hasp shaft 122. As shown in FIG. 4, the hasp 121 includes a connection end 1211, a fastener 1212, and a handle 1213; a tail end of the connection end 1211 is provided with a connection through hole; the hasp shaft 122 penetrates through the connection through hole, to install the hasp 121 on the upper cover 12; the fastener 1212 is in a shape of a semi-flat-spherical; a connection surface between the fastener 1212 and the connection end 1211 is an arc surface; a planar end opposite to the arc surface is connected to the handle 1213, which is arrow-shaped to facilitate pulling by a hand. The material of the hasp 121 is EPDM rubber, which can be stretched under an effect of a pulling force. Accordingly, a corresponding surface of the box body 11 is provided with a semi-arc-shaped notch for fixing the fastener 1212. In use, the upper cover 12 is covered on the box body 11; the handle 1213 is pulled by a hand to stretch the entire hasp 121 until the fastener 1212 reaches the semi-arc-shaped notch of the box body 11; the fastener 1212 is clamped at the semi-arc-shaped notch; the handle 1213 is loosened, so that the box body 11 and the upper cover 12 are in a locked state by using an elastic force of the hasp 121.

The fastener 1212 is in a shape of a semi-flat-spherical; the shape can be obtained by the following process: two spherical segments are cut from a complete sphere by using two parallel planes; the two spherical segments have different sizes; then a part, of which the volume is not less than 1/2 of the entire volume, is cut from the remaining part in a direction vertical to the parallel planes; the remaining small part is in butt joint with a cuboid; a surface, for butt joint, of the cuboid is completely the same as a butt joint surface of the remaining small part; the shape obtained after butt joint is the shape of a semi-flat-spherical, that is, the same as the shape of the fastener.

In another optional embodiment, the fastener 1212 of the hasp 121 is in a shape of a hemisphere.

In other embodiments, the fastener 1212 of the hasp 121 is the remaining body part obtained by cutting spherical segments using two parallel planes, and the body part includes two parallel planes.

A sealing ring 14 is further disposed between the box body 11 and the upper cover 12, and coordinate with the hasp 121, so that sealing is kept between the box body 11 and the upper cover 12 when they are locked with each other, thereby achieving the objective of heat preservation of the heat preservation box 1.

As shown in FIG. 5, the wooden box 2 includes a body 21 and a wooden box cover 22; the wooden box cover 22 is covered on the body 21, and the wooden box cover 22 and the body 21 are in split form, and there is no connection between the body 21 and the wooden box cover 22.

The body 21 is a rectangular wooden box body with legs 211. The number of the legs 211 is 4, and the legs are all made of wood; the legs 211 are connected to each other by using supporting crossbars to form a main frame of the body 21; moreover, the wooden box body is located in the frame, and is fixedly connected to the legs 211 by using bolts. A pulley 212 for facilitating movement is disposed below each leg 211, and the pulleys 212 are fixed on the legs 211 by using self-tapping screws.

Optionally, the legs 211 and the cuboidal wooden box body may also be designed to be integral.

As shown in FIG. 6, a cavity is disposed in the body 21; the inner size of the body 21 matches the size of the heat preservation box 1, and the heat preservation box 1 is directly placed in the body 21 for fixation.

As shown in the partial enlarged view of upper edges of the body 21 in FIG. 7, two grooves are disposed on each upper edge of two surfaces, which are left-to-right opposite to each other, of the body 21; when the heat preservation box 1 is placed in the body 21, the pulling rope 115 is placed in the grooves of the upper edges of the body 21, and the handle is placed outside the body 21, to save the inner space.

Optionally, there is a space for accommodating the hasp 121 on a side surface inside the body 21; when the heat preservation box 1 is fixed, the hasp 121 is placed in the space on the side surface of the body 21 to facilitate installation.

A side cover plate 213 is disposed on a side surface, corresponding to a side surface on which the drain plug 113 is installed of the heat preservation box 1, on the body 21, and can be opened downwards or upwards, and is used to directly discharge waste water in the heat preservation box 1, and waste water does not contact the body 21.

In this embodiment, as shown in FIG. 8, the side cover plate 213 is L-shaped; one end of the side cover plate 213 is connected to the body 21 by using a pin shaft, and the other end is connected to the body 21 by using a latch 214. The latch 214 includes a fixed part and a flexible part; the flexible part is installed on the side cover plate 213 and includes an oblong ring and a wrench; the fixed part is fixedly installed on the body 21, and is provided with an installation groove for installing the oblong ring. The position of the flexible part may also be exchanged with the position of the fixed part. When the side cover plate 213 is closed, the oblong ring is fastened into the installation groove of the fixed part, and then the wrench is pulled down to fix the side cover plate 213; when the side cover plate 213 needs to be opened to discharge water, the wrench is pulled up to take the oblong ring out of the installation groove, and the side cover plate 213 is opened to discharge water. As shown in a partial enlarged view after the heat preservation box 1 is installed in the body 21 in FIG. 9, a through hole for water drainage of the heat preservation box 1 in this embodiment is located in the L-shaped space of the side cover plate 213; the L-shaped space herein refers to a cuboidal space formed by the side cover plate 213; the length of the cuboidal space is an edge length L of a first edge 2131 of the side cover plate 213, and the width is an edge width W of a second edge 2132 of the side cover plate 213, and the height is an edge length H of a third edge 2133 of the side cover plate 213. A distance between the side surface of the side cover plate 213 and the side surface of the box body 11 is M. Therefore, when the side cover plate 213 is opened, waste water in the heat preservation box 1 can be directly discharged from the heat preservation box 1 to the outside of the body 21 without contacting the body 21, so as to prevent the waste water from being accumulated in the body 21, and prevent the box body from being damaged. In an embodiment, M is not less than approximately 10 mm. In another embodiment, a value range of M is approximately from 10 mm to 50 mm.

In this embodiment, the edge length L of the first edge 2131 of the side cover plate 213 is approximately 120 mm to 150 mm; the edge length W of the second edge 2132 is approximately 100 mm to 130 mm; the edge length H of the third edge 2133 is approximately 120 mm to 150 mm.

In another optional embodiment, the edge length L of the first edge 2131 of the side cover plate 213 is approximately 108 mm; the edge length W of the second edge 2132 is approximately 100 mm; the edge length H of the third edge 2133 is approximately 135 mm.

Optionally, a bottle opener 215 is further disposed on the body 21. The bottle opener 215 is fixed on an upper right corner of the body 21 by using a self-tapping screw, to facilitate use.

The wooden box cover 22 and the body 21 are in a split structure. As shown in FIG. 10, bolt holes 123 are disposed on two opposite corners, on which the hinge shaft 13 is installed, on the upper cover 12 of the heat preservation box 1; accordingly, as shown in FIG. 11, bolt holes 123 are disposed on two corners of the wooden box cover 22; nuts are embedded and fixed in the bolt holes 123; the bolt holes 123 are disposed on edges of the wooden box cover 22 and the upper cover 12 of the heat preservation box 1, to facilitate disassembly and assembly, and fixation and connection. As shown in FIG. 12, during installation, bolts penetrate through the bolt holes 123 and are screwed into the nuts of the wooden box cover 22 to fixedly connect the upper cover 12 and the wooden box cover 22.

Optionally, the wooden box cover 22 is further provided with an opening handle 1213 for opening the heat preservation box 1.

In use, the bolts penetrate through the bolt holes of the upper cover 12 and are screwed into the nuts of the wooden box cover 22, so that the wooden box cover 22 is fixedly connected to the upper cover 12 of the heat preservation box 1 by using bolts. The box body 11 of the heat preservation box 1 is placed in the body 21 of the wooden box 2; the hasp 121 is placed in the space on the side surface; the pulling rope 115 is placed in the grooves on the upper edges of the body 21, and the handle 1213 is placed outside the body 21. The wooden box cover 22 and the upper cover 12 of the heat preservation box 1 are integrally covered on the box body 11 of the heat preservation box, and the sealing gasket 14 is pressed tight by weights of the wooden box cover 22 and the upper cover 12. When the heat preservation box 1 needs to be opened, the opening handle 1213 on the wooden box cover 22 can be pulled; in this case, the wooden box cover 22 and the upper cover 12 integrally rotate by using the hinge shaft 13 as a rotation shaft, to implement integral opening of the wooden box cover 22 and the upper cover 12. When the heat preservation box 1 needs to be used alone, bolts between the wooden box cover 22 and the upper cover 12 are detached to take the box body 11 of the heat preservation box 1 out; the upper cover 12 is re-covered, and the handle 1213 is pulled by a hand to stretch the entire hasp 121 until the fastener 1212 reaches the semi-arc-shaped notch of the box body 11; the fastener 1212 is clamped at the semi-arc-shaped notch; the handle 1213 is loosened, and in this case, the box body 11 and the upper cover 12 are in a locked state, and the heat preservation box 1 can be used alone.

Based on the above, the present application provides a heat preservation box and a split-type wooden box with a heat preservation box. A wooden box cover is fixed to an upper cover of the heat preservation box by using a bolt, and they are detachable. There is no connection between the wooden box cover and a wooden box; the upper cover of the heat preservation box is fixed to a box body of the heat preservation box by using a hinge shaft; the wooden box cover implements opening and closing with the upper cover of the heat preservation box by using the hinge shaft of the heat preservation box; a drain plug on a side surface of the heat preservation box is used in cooperation with a side cover plate of the wooden box, so that waste water in the heat preservation box can be prevented from entering the wooden box; in addition, the heat preservation box can be taken out of the wooden box for use alone, and the operation is easy.

The foregoing descriptions of specific exemplary embodiments of the present invention have been presented for purposes of illustration and description. They are not intended to be exhaustive or to limit the invention to the precise forms disclosed, and obviously many modifications and variations are possible in light of the above teachings. The exemplary embodiments were chosen and described in order to explain certain principles of the invention and their practical application, to thereby enable others skilled in the art to make and utilize various exemplary embodiments of the present invention, as well as various alternatives and modifications thereof. It is intended that the scope of the invention be defined by the Claims appended hereto and their equivalents. 

What is claimed is:
 1. A split-type box for removably containing a stand-alone heat preservation box, comprising: a box body, removably containing a body of the heat preservation box; a box cover, removably connected to an upper cover of the heat preservation box, wherein each of at least two corners of the box cover comprises a bolt hole, configured to connect to the upper cover of the heat preservation box by bolts; and an openable cover plate, covering an opening of the box body of the split-type box and corresponding to a drain of the heat preservation box, wherein the box body and the box cover are not connected.
 2. The split-type box according to claim 1, wherein one end of the cover plate is connected to the box body of the split-type box by a pin shaft, and the other end of the cover plate is connected to the box body of the split-type box by a latch.
 3. The split-type box according to claim 1, wherein the cover plate covers a part of a side wall of the box body of the split-type box.
 4. The split-type box according to claim 1, wherein the cover plate covers a part of a bottom wall of the box body of the split-type box.
 5. The split-type box according to claim 1, wherein in a lateral direction, a side surface of the cover plate has a predetermined distance from the side surface of the box body of the heat preservation box.
 6. The split-type box according to claim 1, wherein the cover plate is L-shaped,
 7. The split-type box according to claim 6, wherein a cuboidal space is defined by the cover plate, the drain is disposed within the cuboidal space.
 8. The split-type box according to claim 7, wherein the drain is disposed at least 10 mm from sides of the cuboidal space.
 9. The split-type box according to claim 7, wherein the drain is disposed about 10 to 50 mm from sides of the cuboidal space.
 10. The split-type box according to claim 7, wherein the cuboidal space has a first edge between approximately 120 mm to 150 mm, a second edge between approximately 100 mm to 130 mm, and a third edge between approximately 120 mm to 150 mm.
 11. The split-type box according to claim 1, wherein the opening corresponding to the cover plate is sized and configured to allow water directly discharged from the heat preservation box to the outside of the split-type box without contacting the box body of the split-type box.
 12. The split-type box according to claim 1, wherein inner dimensions of the box boy of the split-type box match outer dimensions of the heat preservation box.
 13. The split-type box according to claim 1, wherein an internal surface of the box body of the split-type box further comprises a groove, corresponding to a projection disposed on an outside surface of the box body of the heat preservation box.
 14. The split-type box according to claim 1, wherein an internal surface of the box body of the split-type box further comprises a projection, corresponding to a groove disposed on an outside surface of the box body of the heat preservation box.
 15. The split-type box according to claim 1, wherein the heat preservation box is a cooler.
 16. The split-type box according to claim 1, wherein the box body of the split-type box is made of woods.
 17. The split-type box according to claim 1, wherein the box cover of the split-type box is made of woods.
 18. The split-type box according to claim 1, wherein the split-type box is made of woods.
 19. The split-type box according to claim 1, wherein when the heat preservation box is closed, the box cover of the split-type box and the box body of split-type box cover the heat preservation box, so that a user cannot see the heat preservation box.
 20. A heat preservation kit, comprising: a stand-alone heat preservation box, comprising: a body, and an upper cover, rotatably connected to the body; and a split-type box for removably containing the stand-alone heat preservation box, comprising: a box body, removably containing the body of the heat preservation box; a box cover, removably connected to the upper cover of the heat preservation box, wherein each of at least two corners of the box cover comprises a bolt hole, configured to connect to the upper cover of the heat preservation box by bolts; and an openable cover plate, covering an opening of the box body of the split-type box and corresponding to a drain of the heat preservation box, wherein the box body and the box cover are not connecte 